package com.itheima.mapper;

import com.itheima.pojo.User;
import org.apache.ibatis.annotations.Insert;
import org.apache.ibatis.annotations.Param;
import org.apache.ibatis.annotations.Select;

public interface UserMapper {
    /*根据用户名密码查询用户对象*/
    @Select("select * from tb_user where username=#{username} and password = #{password}")
    User select(@Param("username") String username,@Param("password") String password);

    /*根据用户名查询用户对象*/
    @Select("select * from tb_user where username=#{username} ")
    User selectByUsername(String username);

    /*添加用户*/
    @Insert("Insert into tb_user values(null,#{username},#{password})")
    void add(User user);
}
